 autom inform-retriev system ir it easiest appli mechan autom transmiss accumul search autom extend cover complic function in case suppli automat devic analys decis man thu role machin consider extend man's capabl complet replac man the autom system intend accumul search call inform-retriev system ir these system perform simpler form data process the physic facil system commun equip punch-card comput microfilm equip electron comput plai promin 